I realize I'm sort of late to the party here, but having just bought the Pitt, Point Lookout, and Mothership Zeta  from that sale a few days ago and playing through them all back to back to back, I cannot say how much I was pleased by this DLC.  It was by far the best of the 5.  Point Lookout had its charm, but it was nothing compared to this one.  The pacing, story, setting, and more than anything else, equipment you got from the experience was all top notch.  What really sets it aside is the uncharacteristically cinematic experience the game gives for this one.  There is just so much detail here from the weird detours to various parts of the ship, the audio logs, the mishap with the deathray if you do what I did and just pushed every button in site without being caring about what it does, and even the confused samurai that no one can communicate with because no one speeks Japanese anymore, it's all fantastic.  Out of all the DLC, this one stands out in my mind for being the best by far. and I only hope Bethesda puts something similar in their next game.

I bought Prey a few days ago off Games on Demand because I enjoyed the demo. I'm liking the game so far.

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I bought Prey a few days ago off Games on Demand because I enjoyed the demo. I'm liking the game so far.

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Really? I found Mothership Zeta to be a boring mix of combat, linear hallways and bland environments (bar the earth viewing platform of course). There wasn't much character development and when you have people from different eras it just seemed like a missed opportunity. Point Lookout was good because it was basically a miniature version of Fallout 3.

Really?  I was most disappointed with Mothership Zeta of all the DLC.  It just felt like linear corridor shooting with little of the classic Fallout dark humor that made the rest of the parts so great, maybe I was just burnt out on the 100+ hours I spent with game when I got it though.  Point Lookout will probably always be how i'd like to remember the DLC episodes, as it took some chances storywise and had enough varied gameplay to keep me interested.  Just my two cents. 
 
And Prey had an awesome opening, decent premise, and some really cool ideas that were kinda ahead of their time but you're right, they didn't follow through in the end.

I didn't like Mothership Zeta that much, but it's probably because I had high expectations for it.  But Ryan used my pictures in his review, thus this DLC is awesome.

I'm guessing most of you who are saying it wasn't good, didn't go out of their way to explore the ship.  One part that stands out above all else was in a waste disposal facility that if you follow the objectives directly, you never even approach.  You need to go there to get the Alien Archivist achievement, but I get the feeling very few people did.  It's to bad because that section had more work put into it than arguably, any other part of the ship....MAYBE the bridge

I think all of the Fallout 3 DLC blows, the only exception being Broken Steel, because it actually enhanced my character in an appreciable way.

Point Lookout is the best to me because it gave me a new landmass to actually have incentive to come back and explore. Zeta is good for guns and samurai armor.